Letter tray



FIG. 1 is a front perspective view of a letter tray;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines are included to show portions of the letter tray that form no part of the claimed design.

The broken away symbols in the drawings indicate that the appearance of any portion of the article between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a letter tray, as shown and described. 